Signatures of Higgs bosons in the top quark decay channel at hadron colliders

被引：69

作者：

Bernreuther, W ^{[1
]}

Flesch, M ^{[1
]}

Haberl, P ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Theoret Phys, D-52056 Aachen, Germany

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.58.114031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze some signatures of neutral Higgs bosons, produced in high energy proton-(anti)proton collisions, which decay primarily to top quarks. This channel is clouded by a large irreducible tt background. We investigate the t (t) over bar invariant-mass distribution in the lepton + jets decay mode of It and a ti spin-spin correlation in the dilepton decay mode. At the CERN LHC such Higgs bosons can be detected in the tt invariant-mass spectrum, and the spin-spin correlation studied by us is also sensitive to such a Higgs boson if this particle has a mass below 500 GeV. [S0556-2821(98)06523-0].

引用

页数：13

共 32 条

[11] OPTIMAL OBSERVABLES FOR THE MEASUREMENT OF 3 GAUGE BOSON COUPLINGS IN E+E--]W+W- [J].

DIEHL, M ;

NACHTMANN, O .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 62 (03) :397-411

[12] PRODUCTION OF HIGGS BOSONS IN PROTON COLLIDERS - QCD CORRECTIONS [J].

DJOUADI, A ;

SPIRA, M ;

ZERWAS, PM .

PHYSICS LETTERS B, 1991, 264 (3-4) :440-446

[13] HIGGS PRODUCTION AND DECAY INTO HEAVY FLAVORS WITH THE GLUON FUSION MECHANISM [J].

GAEMERS, KJF ;

HOOGEVEEN, F .

PHYSICS LETTERS B, 1984, 146 (05) :347-349

[14] HIGGS BOSONS FROM 2-GLUON ANNIHILATION IN PROTON-PROTON COLLISIONS [J].

GEORGI, HM ;

GLASHOW, SL ;

MACHACEK, ME ;

NANOPOULOS, DV .

PHYSICAL REVIEW LETTERS, 1978, 40 (11) :692-694

[15] DYNAMICAL PARTON DISTRIBUTIONS OF THE PROTON AND SMALL-X PHYSICS [J].

GLUCK, M ;

REYA, E ;

VOGT, A .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 67 (03) :433-447

[16] QCD CORRECTIONS TO HIGGS-BOSON PRODUCTION AT PROTON-PROTON COLLIDERS [J].

GRAUDENZ, D ;

SPIRA, M ;

ZERWAS, PM .

PHYSICAL REVIEW LETTERS, 1993, 70 (10) :1372-1375

[17]

Gunion J. F., 1990, HIGGS HUNTERS GUIDE

[18] Top-quark production in hadron-hadron collisions and anomalous top-quark-gluon couplings [J].

Haberl, P ;

Nachtmann, O ;

Wilch, A .

PHYSICAL REVIEW D, 1996, 53 (09) :4875-4885

[19] ANGULAR-CORRELATION OF CHARGED LEPTONS FROM TTBAR PRODUCED IN THE GLUON FUSION NEAR THRESHOLD [J].

HARA, Y .

PROGRESS OF THEORETICAL PHYSICS, 1991, 86 (04) :779-781

[20] Higgs production at the LHC: An update on cross sections and branching ratios [J].

Kunszt, Z ;

Moretti, S ;

Stirling, WJ .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 74 (03) :479-491

← 1 2 3 4 →